When people think of forests, they certainly do not think of fish. Yet underwater, there are plenty of plants with roots, stems, and leaves that produce oxygen just as they do on land, creating valuable habitats for many marine species. Posidonia Oceanica has ribbon-like leaves, up to 1m long, that capture CO2 and release oxygen through photosynthesis. Among Mediterranean seagrasses, posidonia is the most effective in carbon fixation and storage. A posidonia seagrass meadow is called a posidonet. Creating one means helping the sea breathe and consequently, all of us.

What happens to these species when their habitat fails, when the place where they evolved to live in disappears or becomes inhospitable? They die, or they migrate in search of survival elsewhere. More often than not, they do not find it. The loss of biodiversity in the sea has consequences on the whole environment: it makes us more vulnerable to flooding, it reduces available water resources, and it impacts energy and food supplies, hence economic supplies. There is still time to play the UNO reverse card against this course of events, and contributing is not that complex. By creating a posidonet, you can help several species thrive in their own habitat, and by doing so, you help the rest of the planet as well. Yep, it’s that easy.

This degradation is mainly caused by anthropization, the activities carried out by humans to adapt the territory to their needs. We are talking about consequences such as seabed overexploitation, overfishing and trawling, anchoring, pollution, and global warming. A seabed populated with posidonia is a healthy seabed, and so is the coastline in its vicinity.